Example

// crt_memicmp.c
/* This program uses _memicmp to compare
* the first 29 letters of the strings named first and
* second without regard to the case of the letters.
*/
#include <memory.h>
#include <stdio.h>
#include <string.h>
int main( void )
{
int result;
char first[] = "Those Who Will Not Learn from History";
char second[] = "THOSE WHO WILL NOT LEARN FROM their mistakes";
/* Note that the 29th character is right here ^ */
printf( "Compare '%.29s' to '%.29s'\n", first, second );
result = _memicmp( first, second, 29 );
if( result < 0 )
printf( "First is less than second.\n" );
else if( result == 0 )
printf( "First is equal to second.\n" );
else if( result > 0 )
printf( "First is greater than second.\n" );
}